*{margin: 0px;padding: 0px; overflow: hidden;}
body{width:100%;}
a{color: #B6B4B6;}
a:HOVER{color:#FDFAFA;}
#page_Header{width:100%;height: 10%; border:1px solid gray;background-color: #337AB7;}

#page_Header #div_2{float: right;margin: 8px 8px;}

#page_Left{width:13%;height:600px; float:left;background-color: #F0F9FD; }

.nemu_1 li{list-style-type:none;height: 38px;line-height:38px; font-size:14px;color: black;border: 0.3px solid white;}
 
.nemu_1 li:nth-child(1){background-color: #3C96C8;font-size:14px;color: white;}
 
.nemu_1 li:nth-child(1) span{display:inline-block; width:20px;height:21px; background: rgba(0, 0, 0, 0) url('../img/leftico.png');float: left; margin: 9px;}

 .nemu_1 li:nth-child(2){background-color: #D4E7F0;}
 
 .nemu_1 li:nth-child(2) span{display:inline-block; width:16px;height:16px; background: rgba(0, 0, 0, 0) url('../img/leftico01.png');float: left; margin: 12px 9px;}
 
 .nemu_1 li:nth-child(4){background-color: #D4E7F0;}
 
 .nemu_1 li:nth-child(4) span{display:inline-block; width:16px;height:16px; background: rgba(0, 0, 0, 0) url('../img/leftico03.png');float: left; margin: 12px 9px;}
 
 .nemu_1 a{color:black; }
 
 /*用CSS写出一个三角形小图标，这个是用em标签*/
 .nemu_1 li em { display:block; font:0/0 "宋体"; border:4px solid; border-color:#f0f0f0 #f0f0f0 #f0f0f0 #921902; float:left; margin: 15px 5px 15px 25px;}

#page_Right{width:87%;height:600px;float:left;background-color: #FFFFFF;}

